Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Statement of Comprehensive Income [Abstract]
Net Earnings	$ 134,268	$ 117,378	$ 263,434	$ 218,221
Components of other comprehensive income (loss)
Cumulative translation adjustment	4,553	(13,532)	9,528	(16,492)
Pension and postretirement medical liability adjustment	1,195	1,368	2,327	2,262
Income taxes - pension and postretirement medical liability adjustment	(264)	(320)	(508)	(514)
Other comprehensive income (loss)	5,484	(12,484)	11,347	(14,744)
Comprehensive Income	$ 139,752	$ 104,894	$ 274,781	$ 203,477